SATHEE: Haloalkanes and Haloarenes

Haloalkanes and Haloarenes - Result Question 42

####42.

products are formed when the following compounds is treated with $B r_{2}$ in the presence of $F e B r_{3}$ ?

[2014]Cc1cccc(C)c1

(a)Cc1ccc(Br)c(C)c1

(b)Cc1ccc(Br)c(C)c1 andCc1cccc(C)c1Br

(c)Cc1ccc(Br)c(C)c1Cc1ccc(Br)c(C)c1

(d)Cc1ccc(Br)c(C)c1

andCc1cc(C)cc(Br)c1

Show Answer

Solution:

(c) Methyl group is ortho para directing but due to steric hindrance effect, generated by two $C H_{3}$ groups substitution will not take place on position (I). Hence, only two products are possible.Cc1cccc(C)c1

i.e.Cc1cccc(C)c1Cc1ccc(Br)c(C)c1

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Haloalkanes and Haloarenes - Result Question 42

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